Published February 2015 | Version v1
Journal article Metadata-only

Fault DSmT fusion method of core barrel based on wavelet energy analysis

Creators

  • 1. Engineering Training Center, Harbin Engineering University, Harbin (China)
  • 2. National Defense Key Subject Laboratory for Nuclear Safety and Simulation Technology, Harbin Engineering University, Harbin (China)

Description

Being aimed at the problems that it is difficult to recognize effectively the faults of core barrel rupture and fall off of core barrel fasteners parts, a method of the wavelet packet energy analysis and DSmT is proposed. By using the wavelet decomposition and reconstruction method, the fault signal of core barrel is decomposed to the basis function family formed from wavelet expanding and contracting, then sub-band energy distributed in different bands are obtained, and used as BPA evaluation signal of core barrel DSmT. By the simulation and analysis, the effectiveness of this method is verified. (authors)

Additional details

Publishing Information

Journal Title
Nuclear Power Engineering
Journal Volume
36
Journal Issue
1
Journal Page Range
p. 85-89
ISSN
0258-0926

INIS

Country of Publication
China
Country of Input or Organization
China
INIS RN
48083731
Subject category
S22: GENERAL STUDIES OF NUCLEAR REACTORS;
Descriptors DEI
ALGORITHMS; DATA ACQUISITION; EVALUATION; FAILURE MODE ANALYSIS; FASTENERS; MECHANICAL VIBRATIONS; REACTOR CORE RESTRAINTS; RUPTURES; SIGNALS; SIMULATION; SUPPORTS
Descriptors DEC
DATA PROCESSING; ENGINEERED SAFETY SYSTEMS; FAILURES; MATHEMATICAL LOGIC; MECHANICAL STRUCTURES; PROCESSING; REACTOR PROTECTION SYSTEMS; RESTRAINTS; SYSTEM FAILURE ANALYSIS; SYSTEMS ANALYSIS

Optional Information

Notes
6 figs., 2 tabs., 8 refs.